:root { --primary: #2563eb; --primary-dark: #1d4ed8; --success: #22c55e; --danger: #ef4444; --warning: #f59e0b; --info: #3b82f6; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: #f8fafc; -webkit-font-smoothing: antialiased; }

/* Navbar */
.navbar { backdrop-filter: blur(10px); background: rgba(255,255,255,0.95) !important; }
.navbar-brand { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em; }

/* Product Card */
.card-product { transition: transform 0.2s cubic-bezier(0.4,0,0.2,1), box-shadow 0.2s; border: none; border-radius: 12px; overflow: hidden; }
.card-product:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
.card-product img { height: 240px; object-fit: cover; transition: transform 0.3s; }
.card-product:hover img { transform: scale(1.03); }
.card-product .card-body { padding: 16px; }
.card-product .category-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.5px; color: #94a3b8; font-weight: 600; }

.price-tag { color: var(--primary); font-weight: 700; font-size: 1.15rem; }
.compare-price { color: #94a3b8; font-size: 0.85rem; text-decoration: line-through; }
.discount-badge { background: var(--danger); color: #fff; font-size: 0.7rem; padding: 2px 8px; border-radius: 4px; font-weight: 600; }

/* Buttons */
.btn-add-cart { background: var(--primary); border-color: var(--primary); font-weight: 500; }
.btn-add-cart:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-1px); }

/* Hero */
.hero-section { background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%); color: #fff; }
.hero-section h1 { font-size: 2.75rem; font-weight: 800; letter-spacing: -0.03em; }

/* Category */
.category-card { text-align: center; padding: 24px 16px; background: #fff; border-radius: 16px; transition: transform 0.2s, box-shadow 0.2s; border: 1px solid #e2e8f0; }
.category-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(0,0,0,0.06); }

/* Admin */
.admin-stat { background: #fff; border-radius: 12px; padding: 20px; transition: transform 0.2s; }
.admin-stat:hover { transform: translateY(-2px); }
.admin-stat .num { font-size: 1.75rem; font-weight: 800; }

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.card-product { animation: fadeIn 0.4s ease-out; }

/* Responsive */
@media (max-width: 768px) {
    .hero-section h1 { font-size: 2rem; }
    .card-product img { height: 180px; }
}